concat(*args) public

Concatenates the given object(s) to str. If an object is an Integer, it is considered a codepoint and converted to a character before concatenation.

concat can take multiple arguments, and all the arguments are concatenated in order.

a = "hello "
a.concat("world", 33)      #=> "hello world!"
a                          #=> "hello world!"

b = "sn"
b.concat("_", b, "_", b)   #=> "sn_sn_sn"

See also String#<<, which takes a single argument.

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